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Title: Influence of symbiotic bacteria on entomopathogenic nematode--host interactions

Author
item Campbell, James - Jim
item CHRISTEN, JAYNE - KANSAS STATE UNIVERSITY
item Shapiro Ilan, David
item LEWIS, EDWIN - UNIVERSITY OF CALIFORNIA

Submitted to: National Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 9/15/2007
Publication Date: 12/7/2007
Citation: Campbell, J.F., Christen, J.M., Shapiro Ilan, D.I., Lewis, E.E. 2007. Influence of symbiotic bacteria on entomopathogenic nematode--host interactions (abstract). National Entomological Society of America Annual Meeting, San Diego, CA., December 7-12, 2007.

Interpretive Summary:

Technical Abstract: There are three players in the infection process of entomopathogenic nematodes (Steinernematidae and Heterorhabditidae): the nematodes themselves, the host insect, and the nematode’s mutualistic bacteria (Xenorhabdus and Photorhabdus spp.). As a host infection progresses, all three of these players could play a role in changing the response of infective juveniles that encounter an infected host. In this presentation, the influence of symbiotic bacteria in a previously infected host on the infection strategies of infective juveniles will be discussed. Points will be illustrated using data on responses of the entomopathogenic nematode Steinernema riobrave to Galleria mellonella or Tenebrio molitor that were previously parasitized by conspecifics or injected with the nematode-symbiotic bacterium, Xenorhabdus sp.